Money Supply Calculator
Calculate M1, M2, and M3 money supply aggregates with our free calculator. Track currency in circulation, demand deposits, savings deposits, and money market funds.
About This Calculator
The Money Supply Calculator helps economists, students, and financial professionals compute the standard measures of a nation's money supply — M0, M1, M2, and M3. By entering the individual monetary components such as currency in circulation, demand deposits, travelers checks, and various deposit types, you can instantly see how these aggregates are constructed and compare their relative sizes.
This calculator follows the standard macroeconomic definitions used by central banks worldwide. M0 (the monetary base) represents all physical currency in circulation. M1 (narrow money) adds demand deposits, travelers checks, other checkable deposits, and savings deposits — the most liquid forms of money. M2 (broad money) further includes money market mutual funds and small time deposits under $100,000. M3 (the broadest measure) adds large time deposits over $100,000.
Understanding the money supply is essential for analyzing monetary policy, inflation trends, and economic growth. Central banks like the Federal Reserve (US), the Reserve Bank of India (RBI), and the Bank of England (UK) regularly publish money supply data and use it as a key indicator for policy decisions.
Regional Notes
United States: The Federal Reserve tracks M1 and M2 money supply measures, releasing updated data weekly and monthly. As of early 2025, the US M1 money supply stood at approximately $18.46 trillion. The Fed discontinued M3 reporting in 2006.
India: The Reserve Bank of India tracks four monetary aggregates: M0 (Reserve Money), M1 (Narrow Money), M2 (M1 + Post Office Savings), and M3 (Broad Money including time deposits). The RBI publishes weekly and annual money supply data.
United Kingdom: The Bank of England uses M4 as its primary broad money measure, which includes currency, deposits, and certain money market instruments. The UK also tracks narrow money (notes and coins + overnight deposits).
Formula
M0 = Currency in Circulation
M1 = M0 + Demand Deposits + Travelers Checks + Other Checkable Deposits + Savings Deposits
M2 = M1 + Money Market Mutual Funds + Small Time Deposits (<$100K)
M3 = M2 + Large Time Deposits (>$100K)
Frequently Asked Questions
What is the money supply?
The money supply is the total stock of money and liquid assets present in an economy at a given time. It includes currency in circulation, demand deposits, savings deposits, and other liquid instruments. Central banks track the money supply to measure economic activity and guide monetary policy decisions.
What is the difference between M1 and M2 money supply?
M1, also called narrow money, includes currency in circulation, demand deposits, travelers checks, other checkable deposits, and savings deposits. M2 (broad money) includes everything in M1 plus money market mutual funds and small time deposits under $100,000. M2 is a broader measure of the money supply.
What is M0 in money supply?
M0, also called the monetary base or narrowest measure of money supply, consists of all physical currency in circulation including banknotes and coins. It is the most liquid form of money and serves as the foundation upon which broader money supply measures like M1, M2, and M3 are built.
How does the Federal Reserve control the money supply?
The Federal Reserve controls the money supply through three main tools: open market operations (buying or selling government securities), changing the reserve requirement ratio for banks, and adjusting the federal funds rate. These tools influence how much money banks can create through lending.
Why is tracking the money supply important?
Tracking the money supply helps economists and central banks monitor economic health, predict inflation or deflation trends, and formulate appropriate monetary policy. An increasing money supply may signal economic growth or potential inflation, while a decreasing supply may indicate economic contraction.
What is the money supply in the United States today?
As of early 2025, the seasonally adjusted M1 money supply in the United States was approximately $18.46 trillion according to the Federal Reserve. M2 was significantly larger at around $21 trillion. These figures fluctuate monthly based on economic conditions and Federal Reserve policy actions.
How does money supply affect inflation?
According to the Quantity Theory of Money, an increase in the money supply that outpaces economic growth can lead to inflation. When more money chases the same amount of goods and services, prices tend to rise. However, the relationship has become less predictable since 2000 due to changes in banking and financial systems.
What is included in M3 money supply?
M3 money supply includes everything in M2 plus large time deposits over $100,000. While the Federal Reserve discontinued reporting M3 in 2006, some other central banks and economists still track it as the broadest measure of money supply. M3 was considered useful for capturing all liquid assets in the economy.